The beleaguered handset maker Nokia is setting itself up for what it hopes will be a lean and mean relaunch in the U.S. later this year: it has finally admitted that it will not launch its newest N9 device--the first and possibly only one based on the MeeGo platform--and that it plans to end sales of its Symbian-based devices as well as low-end Series 40 handsets, as it prepares for a generation of devices it is developing using Microsoft's Windows Phone 7 platform.